Lighthouses : comprising the following papers:-- I. The Bishop rock lighthouses. By William Tregarthen Douglass, M. Inst. C.E. II. The illumination by gas of Tory Island Lighthouse, Co. Donegal. By David Cunningham Salmond. Assoc. M. Inst. C.E. With an abstract of the discussion upon the papers. /
Douglass, William Tregarthen.
Salmond, David Cunningham.
Forrest, James,1825-1917,ed.
Institution of Civil Engineers (Great Britain)
London : Published by the Institution, 25 Great George Street, Westminster, S.W.,
1892.
Lighthouses